Onkyo-HTRC260-avr-sm维修电路原理图.pdf
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1、HT-RC260 SERVICE MANUAL AV RECIEVER Black model MODEL HT-RC260 (B) 120V AC, 60HzBMDC Ref. No. 4194 042010 RC-764M SAFETY-RELATED COMPONENT WARNING! COMPONENTS IDENTIFIED BY MARK ON THE SCHEMATIC DIAGRAM AND IN THE PARTS LIST ARE CRITICAL FOR RISK OF FIRE AND ELECTRIC SHOCK. REPLACE THESE COMPONENTS
2、WITH ONKYO PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL. MAKE LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. RadioFans.CN 收音机爱 好者资料库 SERVICE PROCEDURE HT-RC260 1. R
3、eplacing the fuses This symbol located near the fuse indicates that the fuse used is show operating type, For continued protection against fire hazard, replace with same type fuse, For fuse rating, refer to the marking adjacent to the symbol. Ce symbole indique que le fusible utilise est e lent. Pou
4、r une protection permanente, nutiliser que des fusibles de meme type. Ce demier est indique la qu le present symbol est apposre. 2. To initialize the unit 1. Press and hold down VCR/DVRbutton, then press ON/STANDBY button when the unit is powered on. 2. After Clear is displayed, the preset memory an
5、d each mode stored in the memory are initialized and will return to the factory settings, and turn to Standby mode. 3. Safety check out REF No. PART NAMEDESCRIPTIONPART N O.REMARKS Canadian model : (U.S.A. model only) After correcting the original service problem, perform the following safety check
6、before releasing the unit to the customer. Leakage current Check Measure the leakage current to a known earth ground (water pipe or conduct etc.) by connecting a leakage current tester between the earth ground and exposed metal parts of the unit (input/output ground terminals, screw heads or metal o
7、verlays etc.). Plug the power supply cord directly into a 120Vac 60Hz wall socket and turnON/STANDBY button on. Any current measured must not exceed 0.5mA. This model uses a EE-PROM IC in order to retain radio presets and other settings. So, memory contents will be kept eternally with no care. 4. Me
8、mory Backup 3. Remove the AC cord from power line. F6901FUSE12A-TUL-250V1252301GR F6902FUSE12A-TUL-250V1252301GR F901FUSE10A-UL/T-2331252330GR F901orFUSE10A-T/UL-ST2( 1)252333GR RadioFans.CN 收音机爱 好者资料库 TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 TROUBLE SHOOT
9、-1 No Power TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 No Power YES NO YES YESNO NO YES BAETC-0376/0390 (Power supply) BADG-0364 (MPU Board) JL901 4pin +12V 2pin +10V BAETC-0376/0390 (Power supply) Replace Power Supply Board orRepair Sub Transformer T902 and
10、 itsperipheral circuit. BAETC-0376/0390 (Power supply) BADG-0364 (MPU Board) After Power on, Voltage atJL901_1pin is changed from +12V t o 0V? BADG-0364 (MPU Board) Replace Q701 and also repairits peripheral circuit. BAETC-0376/0390 (Power Supply) F901 is blown out? BAAF-0355(AF Board) BADG-0346 (MP
11、U Board) After Power on, Voltage at P2001 22/21pin +5V 17/18pin +12V BAETC-0359/0352/0345/ (trans teminal Board) BAVD-0375/0389 (Video board) This is just for general reference and does not including every single case. Replacing F901 will not improve the unit. After replacing F901 on BAETC-0376/0390
12、(Power supply) either of F901 on Power supply Board or F6901/F6902 on BAAF-0341(AF Board) blows out? Replace “AF Board”. or “D6901 (Power supply diode)” “Power AMP(Final_TR and A_Class AMP) ” and also repair their peripheral circuit. After Power on, Voltage at JL952 AC10V Replace Power Transformer o
13、r Repair its peripheral circuit. Replace Video Board or Repair D901/Q9023/Q9031 and their peripheral circuit. YES YES NO NO NO TX-SR308/ /508/ 578/ 608 HT-R280/ 380/ 538/ 580/ 680/ 980/ C230/ C260 DTR-20.2/ 30.2 TROUBLE SHOOT- 2 No Display A 1 2 3 4 5 BCDEFGH FLD_CLKFLD_SDD(DATA) FLD_CS V:1V/cm H:02
14、Msec/cm V:1V/cm H:10sec/cm V:1V/cm H:1sec/cm No Display YES YES NONO NO NO YES YES NO YES Timing of Serial Communication This is just for general reference and does not include every single case. The above waveforms are got by Oscilloscope of Maximum Horizontal Sensitivity: 100MHz. The results depen
15、d on the oscilloscope. Fluorescent Display Tube is not working? Replace Fluorescent Display Tube or BADIS-0373/0387(Display Board). BAPS-0342/0349/0356(-VP Board) JL953 between 2pin-4pin: AC3.3V BAPS-0342/0349/0356 (-VP Board) JL951 1pin-2pin AC3.3V BAPS-0342/0349/0356 (-VP Board) R950(8.2 ) is disc
16、onnected? BAPS-0342/0349/0356 (-VP Board) Replace R950 (8.2 ) or -VP Board Replace Power transformeror Repair its peripheral circuit. BAPS-0342/0349/0356 (-VP Board) Replace -VP Board or Check for signal line damage etc. and fix any damages. BAPS-0342/0349/0356 (-VP Board) JL953 3pin -33V 1pin and 5
17、pin +3.3V BAPS-0342/0349/0356(-VP Board) JL951 3pin-4pin AC40V BAPS-0342/0349/0356 (-VP Board) Replace -VP Board or Repair Q960/D960/D962/R961 and their peripheral circuit. BADIS-0373/ 0387 (Display Board) P701 26pin FLD_SDD 27pin FLD_CLK 28pin FLD_CS Transmission of each of the signals is correct?
18、BADG-0413(MPU Board) Replace or Repair Q701 and their peripheral circuit. MPU Board. Replace Display Board or repair Q7003 and their peripheral circuit. 1 byte data address data 1 byte data data to be YES BADIS-0373/ 0387 (Display Board) NO NO YES TX-SR608 HT-RC260 DTR-20.2/ 30.2TX-SR608 HT-RC260 DT
19、R20.2/ 30.2 TROUBLE SHOOT-3 No Sound A 1 2 3 4 5 BCDEFGH 6 7 8 IJK Y NNN Y YYNN NYY N N N NN Y Y Y Y N N YY N Y N NNN Y NN YY N Y Y Y DIR_FLRDIR_LRCKDIR_BCKDIR_MCK DSP_FLR/SLR/CSWCX_LRCKCX_SCLKHDMI_MCK HDMI_FLRHDMI_LRCKHDMI_BCK V:1V/cm H:0.1/cmV:1V/cm H:5/cmV:1V /cm H:0.1v/cmV:1V/cm H:0.1v/cm HDMI_S
20、PDIF V:1V/cm H:0.1/cm BAAF-0355(AF Board) AUDIO-SEL_OUT Each PRE-OUT or P6600 SBR-1pin SR-3pin FR-5pin C-7pin FL-9pin SL-11pin SBL-13pin BATRM-0368(TRM Board) JL600(AMP_OUT) SR-6pin FR-5pin C-4pin FL-3pin SL-2pin SBR-7pin SBL-1pin BATRM-0368(TRM Board) JL603 1Pin +22V BCAF-0355 (AF Board) P6901(+55V
21、) P6902(-55V) BAAF-0355(AF Board) Q4170 3pin +5V Q4171 3pin -15V Q4184 E +7V Q8185 E -7V BAHDM-0403(HDMI Board) DIR_OUT P8001 3pin DIR_BCK 5pin DIR_LRCK 7pin DIR_FLR P8002 23pin DIR_MCK BADG-0364(MPU Board) DSP_OUT P8002 24pin DSP_FL/R P8001 8pin DSP_SL/R , 10pin DSP_CSW , 4pin CX_SCLK . 6pin CX_LRC
22、LK BADG-0364(MPU Board) BADG-0364(MPU Board) DAC_OUT BADG-0403(HDMI Board) JL801 2pin and 4pin +12V BAETC-0359(torans terminal) JL952 1-3pin AC10V BADG-0364(MPU Board) P2001 21 22pin +5V BADG-0364(MPU Board) P2001 21 22pin +5V BAETC-0359(torans terminal) JL952 1-3pin AC10V BAVD-0375/0389(Video Board
23、) BAHDM-0403(HDMI Board) P8001 16pin HDMI_SPDIF . 15pin HDMI_MCK 13pin HDMI_BCK 11pin HDMI_LRCK 9pin HDMI_FLR BADG-0403 (HDMI Board) JL801 1&4pin +12V BAETC-0359 (torans terminal) JL952 1-3pin AC10V Note: This is just for general reference and does not include every single case. The above waveforms
24、are got by Oscilloscope of Maximum Horizontal Sensitivity: 100MHz. The results depend on the oscilloscope. No Sound from HDMI input Waveforms are no problem? BAVD-0375/0389(Video) Replace Video Board or Repair Repair D9011/R9013/R9012 and their peripheral circuit. Replace Power transformer or Repair
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